Dantel 44124 Installation & Operation Manual Download Page 2

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AGE

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44124-0798 <90-00024>

ORDERING INFORMATION

NOTE: This section lists the different options available for this product. To order any of the avail-

able options, contact Dantel Inside Sales through our toll-free number, 1-800-432-6835.

OPTION NUMBER

FEATURES

B11-44124-00

Data Channel Termination

GENERAL DESCRIPTION

T

he 44124 Data Channel Termination Module (DCTM) is

used to interface a metallic four-wire voice band/data chan-

nel line to a two-wire or four-wire modem when gain and equal-
ization control are required.

The 44124 DCTM provides:

Data channel line conditioning that includes:

• Impedance matching

• Selectable gain and attenuation control

• Adjustable 309B-type post equalization

A loopback capability that can be activated manually or by a
2713 Hz tone

Front panel LED indicators

The 44124 DCTM is a plug-in printed circuit module that fits
into any Dantel 400-type or similar equipment housing. It
operates on -21 to -56 VDC input power.

APPLICATION INFORMATION

T

he 44124 is most often used in Dantel’s 460 Alarm and

Control System to interface mismatched data communication

lines between the 46033 E-System Adapter and a distant Alarm
Center. Refer to Fig. 1.

Summary of Contents for 44124

Page 1: ...For more complete information on electrostatic discharge safety precautions refer to BellcoreTM Technical Reference TR NWT 000870 Copyright 1998 by Dantel Inc Dantel is a registered trademark of Dant...

Page 2: ...equal ization control are required The 44124 DCTM provides Data channel line conditioning that includes Impedance matching Selectable gain and attenuation control Adjustable 309B type post equalizati...

Page 3: ...xed at 600 ohms Input Equalizer Circuit The input equalizer circuit receives an incoming signal from the impedance matching transformer T1 The circuit adjusts slope bandwidth and amplitude before the...

Page 4: ...OR CONTROL ACCUMULATIVE SETTINGS INPUT AMPLIFIER CIRCUIT ACCUMULATIVE SETTINGS OUTPUT AMPLIFIER ACCUMULATIVE SETTINGS K1 LOOPBACK RELAYS S8 SLOPE S7 BANDWIDTH S7 AMPLIFIER HT S12 LOOPBACK LEVEL S11 dB...

Page 5: ...8 seconds Tone detection provides remote testing of the facility and its active components A guard circuit prevents signal frequencies near 2713 Hz from enabling the loopback feature Set switch S12 3...

Page 6: ...ates improper switching or reversed simplex lead polarity Set simplex lead polarity with switch S5 Regulated Power Supply The regulated power supply furnishes all 44124 DCTM power requirements It supp...

Page 7: ...T e r i W r u o F 0 1 S 0 1 S W 2 W 4 k c a b p o o L z H 3 1 7 2 e l b a n E e l b a s i D 2 2 1 S 2 2 1 S D T D t u o e m i T k c a b p o o L z H 3 1 7 2 s e t u n i M 4 s e t u n i M 0 2 1 2 1 S 1...

Page 8: ...a u q E t c e l e S d e d a o L d e d a o l n o N 1 8 S 1 8 S L N n i a G l e v e L t u p n I t c e l e S s s o L n i a G s s o L 3 1 S 3 1 S G L l e v e L t u p n I e v i t a l u m u c c a B d f f o...

Page 9: ...9 8 7 6 5 4 3 2 1 CIRCUIT SIDE OF PC BOARD COMPONENT SIDE OF PC BOARD RCV Input Drop Side TIP A T2 Simplex RCV Input Drop Side RING XMT Output Line Side TIP SX1 XMT Output Line Side RING 21 to 56 VDC...

Page 10: ...the cable If the LF slope is equal to or greater than 3 0 dB set S8 1 ON nonloaded cable Set LF slope SL settings of switches S8 2 to S8 5 using the Nonloaded Cable column of Table B If the LF slope...

Page 11: ...using INSTALLATION TABLE B LF SLOPE SL SETTINGS FOR LOADED AND NONLOADED CABLES NOTE If the calculated values of Slope SL fall between settings use the lower setting indicated by the table LOSS AT 100...

Page 12: ...1 75 2 45 3 15 3 85 4 55 5 25 5 95 6 65 7 35 8 05 8 75 9 45 10 15 Reference Total OFF 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 S7 1 1 OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON S7 2 2 OFF OFF...

Page 13: ...ed by the table Reference Total 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 S7 5 1 OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON S7 6 2 OFF OFF ON ON OFF OFF ON ON OFF OFF ON ON OFF OFF ON ON S7 7...

Page 14: ...52 1 67 1 82 1 98 2 13 2 28 7 0 23 0 46 0 69 0 92 1 15 1 38 1 61 1 84 2 07 2 30 2 53 2 76 2 99 3 22 3 45 8 0 27 0 55 0 82 1 09 1 37 1 64 1 91 2 19 2 46 2 73 3 01 3 28 3 55 3 83 4 10 9 0 30 0 60 0 90 1...

Page 15: ...i l a e s r H u t B 8 4 r H u t B 3 2 1 e v i t c A k c a b p o o L g n i e b t n e r r u c g n i l a e s o n d e t a r e n e g r H u t B 4 5 r H u t B 0 4 1 n i a G B d 4 2 n o i t a z i l a u q E 6...

Page 16: ...n instrument signed by a duly authorized officer of the Seller and accepted by the Buyer Warranty and remedies on products not manufactured by the Seller are in accordance with warranty of the respect...

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